Improved anchor



Il'NiTn O. F. BROWN, OF WARREN, RHODE ISLAND.

IMPROVED ANCHOR.

Specification forming part of Letters Patent No. 54,847, dated May 22, 1866.

To all whom fit may concer/a Be it known that I, (l. F. BROWN, of farren, in the county of Bristol and State of Rhode Island, have invented a new and useful Improvement in Anchors; and I do hereby declare that the following is a full, clear, and

Xact description thereof,.which will enable others skilled in the art to make and use the saine, reference being had to the accompanying drawings, forming part of this specification, in which- Figure l represents an anchor, made accord-- ing to my invention, suspended from the hawse-hole of a vessel. Fig. 2 is an elevation ofthe anchor in side view. Fig. 3 is an axial or cross section.

Similar letters of reference indicate like parts.

This invention consists in an improved mode of inaking anchors, wherein the main part or body of the anchor is cylindrical in form, the flukes being connected therewith by being bolted or otherwise attached transversely on the inside of the lower part'of the cylindrical body. The body of the anchor may be of cast or wrought iron, but the ilukes should be of wrought-iron. Such bodyinayhaveadditional strength imparted to it by means of a rib or membrane formed on its` inner circumference. The body may also be further strengthened by means of a rod or bolt extending dialnetrically across it, its upper end being connected with the eyebolt to which the cable is fastened.

A designates the body of the anchor. It is in its general form a section of a hollow cylinder, whose lower part, which is intended to receive the'ukes, is left undiminished in width and thickness, but whose upper part, where` the cable is to be fastened, is cut down, as at D D, on both sides, so as to make such part narrower than the rest of the anchor. The inner circumference of the body A is a plane surface except Vwhere the rib or membrane E, hereinafter 1nentioned,occurs; but the outer side thereof, is made with two angular faces, G G, which divide the width of said body A equally between them, as shown in Fig. 3, the central line of its width being made thick and strong, and the body coming to a comparatively thin edge on either side. This construction will prevent the anchor from remaining upright when lowered to the bottom and will canse it to fall over to o-ne side or the other, according tothe inclination of the ground it rests upon. The width of the body of the anchor remains the saine up to the points F F on each side, from which points upward each side is narrowed on a line which may be straight or curved. The narrowed portions are designated by the letters D D, and their highest parts are opposite that part of the anchor at which its eye or eyebolt is placed.

In this example of my invention l have stiffened and strengthened the Lipper part of the anchor by a rib or membraneyE, extending along the inner side of the highest part of its body A. It may be extended throughout its whole inner circumference, and it should be placed' in the center of its width; but in this instance it diminishes as it approaches the lower part of the anchor and terminates on each side of the place where the iuke-pieceis attached.

The dukes B B are, in this example of my invention, made of one piece of wrought-iron, which is placed across the inner circumference of the bottom of the body A, where it is properly bolted or otherwise secured. Said 'lukes extend on each side of the body A to a proper distance, according to the size and character of the anchor, the proportions here shown being a sufficient explanation to those skilled in the art of their proportions and size. Their extrcmites are made square or of any other suitable form.

O is a rod in the nature of a stay, which goes through the top or narrowest part of the anchor, diametrically across it, through the center of the lukepiece and into the lowest part of the body A. l t may be screwed into its place or secured in any proper manner, and that part of the rib E through which it passes may be strengthened and thickened on account of its passage through it. A nut, H, is screwed upon the rod against the edge of the rib E, so as to lock thc rod to the anchor still more securely. That part of the rod which protrudes outside of the top of the anchor may be used to secure the usual eyebolt to the anchor.

It will be observed from this construction that when the anchor falls over on either of its sides that it presents three points of contact to the bottoln--that is to say, ailuke, B, andthe points F F-and that at rst only two of these will touch the bottom, to wit: one of the points F and the uke B; but it will not remain in that position, because the center of gravity is in a plane which coincides with the axis of rod C, going through the middle of the part D. The anchor will therefore right itselt1 immediately, so that each of the points F F will touch the bottom, and the fluke B will be presented squarely thereto, and the narrowed part D will be flat thereon.

An anchor made according to the principle of this invention, with continuons sides, Whether the same be cylindrical, as in this example, or otherwise curved or convex, or merely presenting the form of a triangle, will be of superior strength to those-made according to the style in common use, and will not be so liable to be broken.

The nkes are supported and sustained. by the whole breadth of thc body of the anchor, and they may be of any proper thickness and curvature, so as to secure additional strength, if desired.

This anchor is not liable to become foul, because its continuons sides will canse it to clear itself of any obstruction it may come against on the bottom or elsewhere, and it is not liable to be caught and engaged by its own cable as is the case with anchors ot" the common construction.

Having thus described my invention, 1 claim as new and desire to secure by Letters Patent- 1. Forming the sides of anchors of continuons bands, with the nkes arranged across the inner sides thereof, substantially as described.

2. Strengthening the body of an anchor whose sides are made continuous by means of an inner rib or membrane, E, and by a stayrod, C, one or both, substantially as described.

3. Cutting away the upper parts of the body of an anchor whose sides are continuons, as at D D, and forming points F F at one side of the center of gravity, so that the anchor will right itself, substantially as described.

CHARLES F. BROWN.

Witnesses z BELLE F. BROWN, MARY ANN CHILD, JOHN T. CHILD. 

